Sharpening-machine.



N0. 63|,842. v Patented Aug. 29, I899.

C. A. WORDEN, Decd.

M. L. WORDEN. Administratrix. SHABPENING MACHINE.

(Application filed Dec. 23, 1898.

UNITED STATES PATENT OFFICE.

MARY LOUISE l/VORDEN, OF FORT LOGAN, COLORADO, ADMINISTRATRIX OF CHARLESA. W'ORDEN, DECEASED, ASSIGNOR TO THE UNIVERSAL SHARP- ENING MACHINECOMPANY, OF CHICAGO, ILLINOIS.

SHARPENINGfMACl'HNE.

SPECIFICATION forming part of Letters Patent No. 631,842, dated August29, 1899.

- Application filed December 23,1898. Serial No- 700,1'79. (N model.) i

To ail whom it may concern:

Be it known that CHARLES A. WORDEN, (MARY LOUISE WORDEN soleadministratrix of the estate of CHARLES A. WoRDEN, de-

ceased,) late a resident of Fort Logan, county of Arapahoe, State ofColorado, did invent a certain new and usefullmprovement in Sharp=ening-Machines-,and it is declaredthat the following is a full, clear,and exact description of the same, such as will enable others skilled inthe art to which it pertains to make and use the same, reference beinghad to the accompanying drawings, which form a part of thisspecification. r 5 The invention has for its object the production of asharpening-machine for use in sharpening knives, surgical instruments,razors, and other cutlery in which proper provision is made for theadjustment of the grindingwheels and for the holding of the knife orother article to be sharpened during the process of sharpening. Itconsists of a combination of devices and appliances hereinafterdescribed and claimed.

In the drawings, Figure 1, is a front elevation of the machine. Fig. 2isan edge elevation thereof. Fig. 3 is a rear elevation, and Fig. 4 is adetail illustrating the gage.

In carrying out the invention Apresents what may be termed the mainframe of the machine. It is the standard on which the partsare mounted.It is provided at the lower-end with any suitable clamping mechanismwhereby it may be fixed to a table or the like.

B B are arms extending from the main standard and preferably formedintegral therewith.

C C are the adjustable arms, carrying the emery-wheels. They are pivotedat c to the main standard and curve outward, upward, and inward, asshown. At the points where they pass arms B B they are slotted, as shownat c. r

D are thumb-screws engaged, respectively, in the arms B B and providedwith washers. When the arms C C are thrown up to their proper position,the slots 0 embrace these thumb-screws D and are held in any desiredposition thereby.

E are the grinding-wheels engaged to axles c, which revolve in suitablebearings e on the ends of the arms C C. On the opposite endof each axleis a pinion 6 6 the pinion c meshing directly with the largedriving-pinion F, while the pinion e meshes with another pinion e whichis mounted in the arm C, and this latter pinion e meshes with the largedriving pinion F. The pinion F is mounted on the main standard A and isprovided with a handle F, whereby it may be revolved. Thus a revolutionof the large pinion F revolves the grinding-wheels E in oppositedirections to each other.

Extending from the main standard and preferably integral therewith iswhat may be termed a supporting-plate A having parallel projecting earsor flanges a G G are jaws constituting the blade-holdin g device. Thelower end of each is of substantially bell-crank form, they beingpivoted in the supporting-plate by pivots g. The jaw G has asingleprojection f, while the jaw G has a bifurcated projection f. Theprojection f is slotted and embraces the pin f in the projection f, sothat a tilting of one jaw will act to correspondingly tilt the other.Thespring Gr keeps the two jaws normally together at their upper ends..These upper ends are flared somewhat, as shown at f so that the bladecan readily be inserted between them. The upper end of each of the jawsis provided with an opening or recess 9 in which the grinding-wheels canrevolve, and this opening 9 forms a depending arm or projection g oneach jaw, which extends down outside of the grinding-wheels, so that theblade to be sharpened has a support on each side of the grinding-wheels.

H is a gage and is employed to set the grinding-wheels in the desiredposition. It is of substantially triangular shape, one corner beingprovided with a pin H, while the other two corners are provided withorifices h. To use the gage, the operator inserts the pin H between thejaws and brings the orifices h down to and over the pins k on the faceof the supporting-plate A He then loosens the thumb-screws D and bringsthe grindingwheels against the pin H. He then tightens the thumb-screws,thus locking the arms C 100 C in place, and removes the gage. He caneither remove the gage altogether from the machine or he can reverse itsposition and allow the end carrying the pin 11 to depend.

It will be seen that by the above constructionasharpening-machine hasbeen provided wherein the sharpening-Wheels can be easily adjusted tothe desired position and also one wherein the blade to be sharpened isfirmly held in position d uringthe sharpening process.

What is claimed is- 1. In a sharpening-machine, the combina tion ofgrinding-wheels and a holding device consisting of spring-actuatedpivoted jaws, substantially as described.

2. In a sharpening-machine, the combination with the device for holdinga blade consisting of spring-actuated pivoted jaws, of a pair ofgrinding-wheels mounted one on each side of said blade-holding deviceand pivoted supports carrying said grinding-wheels whereby theangulardistance between the grindingwheels may be varied, substantiallyas de scribed.

3. In a sharpening-machine, the combination with the grindingwheels andadjustable supports for the same, of a blade-holdin g device, consistingof a pair of jaws having an opening or recess in which thegrindingwheels revolve and depending arms outside said grinding-wheels,substantially as described.

4. In a sharpening-machine, the combination with the grinding-wheels andadjustable supports for the same, of a blade-holding device, consistingof a pair of spring-actuated metal jaws having an opening or recess inwhich the grinding-wheels revolve and depending arms outside saidgrinding-wheels, substantially as described.

5. In a sharpening-machine, the combination with the base or support ofsupports adjustably secured to said base, a pair of grinding wheels,each of said grinding-wheels mounted on one of saidadjustable supports,a supporting-plate fixed with respect to said base and located betweensaid adjustable supports and spring-actuated jaws adapted to hold theblade in position and mounted upon said supporting-plate, substantiallyas described.

6. In a sharpening-machine, the combination with a base, of an armadjustably secured thereto, means for securing said arm in differentangular positions, uprights carried by said arms,shaftsjournaled in saiduprights,wl1eels mounted fast on said shafts, upright pivoted jawsmounted between said wheels and ad apted to hold the blade of theinstrument to be ground in .a vertical plane, substantially asdescribed.

7. In a sharpening-machine, the combination with the base or support, ofarms adj ustably secured thereto, means for securing said arms indifferent angular positions, uprights carried by said arms, shaftsjournaled in said uprights,wheels mounted fast on said shafts, uprightpivoted jaws mounted between said wheels and adapted to hold the bladeto be ground in a vertical plane and means for rotating said shafts at.the same rate of speed, substantially as described.

8. In a sharpening-machine, the combination with a base; of a pair ofarms pivoted thereto; means for securing the said arms in differentposition; uprights carried by said arms; shafts journaled in saiduprights; a'

grinding-wheel mounted fast on each of said shafts; spring-actuatedupright pivoted jaws mounted between the said wheels and adapted to holdthe blade of the instrument to be ground in a vertical plane,substantially as described.

9. In a sharpening-machine, the combination with the base or support ofarms adjustably secured thereto, shafts journaled in said arms,grinding-wheels mounted on said shafts each shaft provided with apinion, a drivinggear mounted on the base or support, the pinion on eachshaft meshing directly with said driving-gear and the pinion on theother shaft meshing with an auxiliary pinion which meshes with thedriving-gear and a bladeholding device consisting of pivoted jaws forholding the blade in a vertical plane while being ground, substantiallyas described.

10. In a sharpening-machine, the combination with a base or support, ofarms pivoted thereto, a grinding-Wheel mounted in each of said arms,engaging pins located below said grinding-wheels and a gage providedwith a pin adapted for insertion between said grindingwvheels, said gageadapted also for engagement with said pin, substantially as described.

11. In a sharpening-machine, the combination with the device for holdinga blade consisting of a pair of spring-actuated pivoted jaws, of a pairof grinding-wheels mounted one on each side of said blade-holdingdevice, pivoted supports carrying said grinding-wheels whereby theangular distance be tween the grinding-wheels may be varied and a gagefor regulating said distance consisting of a plate of substantiallytriangular shape, one corner provided with a pin adapted for insertionbetween the pivoted jaws and between the grinding-Wheels, the other twocorners adapted for engagement with fixed points on thesupporting-plate, substantially as described. I

In testimony whereof I sign this specification in the presence of twowitnesses.

MARY LOUISE WORDEN, Aclm'in'iszfmtrix of the estate of Charles A.

TVorden, deceased.

Witnesses:

N. W. HUBBARD, J12, HARRIET H. HUBBARD.

